Question

2) 2 m + 6n при m=2 1/2 n=3Срочно!!!

Answer 1

2m+ 6n      m=2 1\2      n=3

2*2 1\2+6*3=2*5\2+18=5+18=23

Answer 2

To evaluate the expression 2m + 6n when m = 2 1/2 and n = 3, follow these steps:

Step 1: Convert the mixed number 2 1/2 to an improper fraction. Step 2: Substitute the values of m and n into the expression 2m + 6n. Step 3: Perform the calculations.

Step 1: Convert 2 1/2 to an improper fraction. To do this, multiply the whole number (2) by the denominator of the fraction (2) and then add the numerator (1). This gives us (2 * 2 + 1 = 5).

So, 2 1/2 as an improper fraction is 5/2.

Step 2: Substitute the values of m and n into the expression 2m + 6n. m = 5/2 (from Step 1) n = 3

Step 3: Perform the calculations. 2m + 6n = 2 * (5/2) + 6 * 3 = 5 + 18 = 23

So, when m = 2 1/2 and n = 3, the value of the expression 2m + 6n is 23.